Children's bracelet is a wearable device specially designed for children to let parents know their children's body temperature at any time. It can be connected with parents' mobile phone APP to understand the children's clothing index. The product is light and thin as a whole, with built-in sensors and low energy consumption. According to the appearance of the design of the Zodiac pig IP image "Haizhu", the pig product image is a symbol of blessing and is very cute, thus making the product accompany the children like a small partner.